mac os unable to find driver for this platform acpi

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Unable To Find For This Platform Acpi Install It On

I found several reports in the webspace that this was once working, so something with virtualbox must have changed.

Unable To Find For This Platform Acpi Install It On

Apple made this update available via Software Update so many would automatically install it on their systems, but unfortunately for many people this update has resulted in kernel panics and the inability to boot their systems.

At other times, the system will simply display an international no symbol and not proceed with the boot process.

For those experiencing kernel panics, the following text may be seen across the screen indicating a fault in the driver.

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If this is successful, then you can download the OS X 10.7.4 Combo updater and apply it to your system, which should replace the faulty kernel extension with the older one.

If you cannot boot to Safe Mode, then you can still apply the combo updater but you will need access to a second Mac running Lion in order to do so.

To use the second Mac to reapply the combo updater, boot up your problematic Mac while holding the T key down, and you should see it load into Target Disk mode.

Next download the OS X 10.7.4 Combo updater and run it, but choose the hard drive of your faulty Mac as the installation destination instead of the internal drive of the working Mac.

When the update is done, eject the Target Disk mode hard drive from your second Mac and restart the faulty system, and your computer should boot normally.

To do this, restart your system with the Command-R keys held down to load the recovery partition, and when the OS X Tools window appears choose the option to restore from backup.

Then attach your Time Machine drive to the system and select the most recent backup to restore, which you should have created immediately before applying any of the recent software updates Apple has issued.

If you do not have a recent backup, then avoid restoring from backup as this will result in you losing any new documents you created since the last backup you made.

Allow the restoration process to finish (it may take a couple of hours to do), and then restart the system.

When finished, open Disk Utility and be sure to run a permissions fix routine on the boot drive, after which your system should be restored and functional.

Similar to applying the Combo update, this will rewrite the OS and a working version of the faulty kernel extension to the hard drive, but will do so without requiring access to a second Mac.

To do this, reboot your system and hold Command-R to load the recovery partition.

Then open the OS X installer and proceed with the re-installation of OS X (you may need to provide your Apple ID and password to download Lion).

As with applying the combo updater, this process will not touch your user accounts and data, but will replace the OS with a fresh copy.

After the installation is complete, restart the system and then immediately download and apply the combo update, which can be done through Software Update or by manually using the combo updater package.

If you use Software Update, then be sure to avoid applying the Thunderbolt Update again as it will appear as an available update.

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Mac Os Unable To Find Driver For This Platform Acpi